Int a = 5; a = a++ + ++a; a =? (2011)

(gynvael.coldwind.pl)

3 points | by e-topy a day ago ago

3 comments

  • magicalhippo a day ago ago

    Perhaps I'm just naive and/or have forgotten too much C, not that I knew that much, but I'm a bit perplexed as to why this is UB.

    It seems like something that should trigger a "we should specify this" reaction when adding these operators, and there is at least one reasonable way to define it which is fairly trivial and easily implementable.

  • Tomte a day ago ago

    Some C++ quiz with ++a and a++? It‘s always about sequence points, or better the lack of sequence points.

    It‘s the standard technical C++ blog post everybody seems to write.

  • nDRDY a day ago ago

    Oh god. How long before yet another UB-based question ends up in technical coding interviews?